I was nervous about switching to a critter keeper, but Ray seems to like it. I especially like it because it has it's own light and filter, and I found a little disk heater that I could fit in it easily.

What I was disappointed in was actually the aquarium sand I purchased seperately... It took forever to settle out, smelled horrible, and discolored Ray's lips and fins. I'll never buy it again.

Well that explains why the decorations I had in one petco keeper didn't fit when I moved the betta to a different one..though I was going a little nuts there for a minute. I thought they were all the same size

I have a question. How many gallons would you recommend for a perfect home for a just one Betta no other fish around?
2.5 gallons(aka aprox 10 litres) is it too much or enough? I don't wanna keep my fishy in a bowl T_T

The 3 gallon Petco keeper is the perfect size for a betta! But, to answers your question a 2.5 gallon is a good size. A little small, but definitely not to big! I prefer to keep my bettas in 5 gallons. Though I do have one of my bettas in a 2.5!